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公开(公告)号：US5192520A
公开(公告)日：1993-03-09
申请号：US689032
申请日：1991-05-10
CPC分类号： B01J29/08 , C01B39/205 , Y10S423/21
摘要： An aluminosilicate gel containing an ST structuring agent whose composition is suitable for crystallization into a zeolite of the faujasite structural family is prepared. The gel then undergoes crystallization in order to form a zeolite precursor which consists of the zeolite containing the ST structuring agent in its cavities and channels, the zeolite being produced through the calcination of the precursor. The ST structuring agent consists of at least one compound from the alkylene polyoxides of formula (1) ##STR1## in which R and R', identical or different, each represents H or an alkyl radical in C.sub.1 to C.sub.4, X designates H or OH, m is equal to 2 or 3 and can differ from one pattern to another, and n is a number from 1 to 12. The zeolites thus obtained have a Si:Al ratio which is greater than 1 and which can go beyond 3, and show a cubic symmetry. The zeolites can be used, directly or after cation exchange, as adsorbants or as catalyst constituents.
摘要翻译： PCT No.PCT / FR90 / 00599 Sec。 371日期1991年5月10日 102（e）日期1991年5月10日PCT提交1990年9月11日PCT公布。 出版物WO91 / 04226 日期：1991年04月4日。制备含有ST结构剂的铝硅酸盐凝胶，其组成适用于结晶化为八面沸石结构族的沸石。 然后，凝胶进行结晶以形成沸石前体，其由在其空腔和通道中含有ST结构化剂的沸石组成，沸石通过煅烧前体而产生。 ST结构剂由至少一种式（1）的亚烷基多氧化物（I）的化合物组成，其中R和R'相同或不同，分别表示H或C1至C4中的烷基，X表示 H或OH，m等于2或3，并且可以不同于一种图案，n为1至12的数。由此得到的沸石的Si：Al比大于1，可超过 3，并显示立方对称性。 沸石可以直接或在阳离子交换后用作吸附剂或催化剂成分。
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公开(公告)号：US5098686A
公开(公告)日：1992-03-24
申请号：US499272
申请日：1990-06-08
CPC分类号： C01B33/2838 , C01B39/205 , Y10S423/21
摘要： A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or orgnaic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings, heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.
摘要翻译： PCT No.PCT / FR89 / 00522 Sec。 371日期：1990年6月8日 102（e）日期1990年6月8日PCT提交1989年10月10日PCT公布。 出版物WO90 / 03944 日本1990年04月19日提供了一种制备属于八面沸石结构级的沸石的方法，其表现出高于1的Si：Al比，其中首先制备pH高于10并含有水的反应混合物 ，四价硅源，三价铝源，强无机或有机碱形式的氢氧根离子源和结构化剂ST，以产生具有所需组成的硅铝酸盐凝胶，使其结晶成为 八面沸石结构类化合物。 将获得的凝胶保持在温度，压力和足够的时间以使凝胶结晶成沸石的前体，该沸石由在其空腔中俘获结构化剂ST的沸石组成，然后将前体煅烧至 破坏结构剂并产生沸石。 结构化剂ST由至少一种属于由含碳的大环形成的基团和在聚合物环中含有选自氧，氮，硅和硫的杂原子，并且每个环含有10至24个原子的大分子形成的化合物组成。 还提供沸石的前体。
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公开(公告)号：US5393511A
公开(公告)日：1995-02-28
申请号：US919855
申请日：1992-07-27
CPC分类号： C01B33/2876 , C01B33/2838 , C01B39/205 , Y10S423/21
摘要： A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced, which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or organic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.
摘要翻译： 提供了一种制备属于八面沸石结构级的沸石的方法，其表现出高于1的Si：Al比，其中首先制备反应混合物，其pH高于10并含有水，四价硅源 ，三价铝源，强无机或有机碱形式的氢氧根离子源和结构化剂ST，以产生具有所需组成的硅铝酸盐凝胶，以使其结晶成八面沸石结构类化合物 。 将获得的凝胶保持在温度，压力和足够的时间以使凝胶结晶成沸石的前体，该沸石由在其空腔中俘获结构化剂ST的沸石组成，然后将前体煅烧至 破坏结构剂并产生沸石。 结构化剂ST由至少一种属于由含碳大环形成的基团和大分子聚合物组成，所述化合物在环中含有选自氧，氮，硅和硫的杂原子，并且每个环含有10至24个原子。 还提供沸石的前体。
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公开(公告)号：US5474753A
公开(公告)日：1995-12-12
申请号：US243076
申请日：1994-05-16
CPC分类号： C11D3/128 , C01B33/2823 , Y10S423/24
摘要： Crystalline 4A zeolites having high calcium ion exchange capacity, well adapted as builder materials for detergent compositions, are prepared by directly admixing an aqueous sodium silicate solution with a first aqueous sodium aluminate solution in a first reaction vessel to form a hydrogel therefrom, and transferring the hydrogel thus formed to a discrete crystallization zone and therein contacting such hydrogel with a crystallization-effecting amount of a second aqueous sodium aluminate solution to convert same into a crystalline 4A zeolite, and, advantageously, filtering, washing and optionally drying such crystalline 4A zeolite.
摘要翻译： 通过在第一反应容器中直接将硅酸钠水溶液与第一铝酸钠水溶液直接混合以形成水凝胶来制备具有高钙离子交换能力的结晶4A沸石，其良好适用于洗涤剂组合物的助洗剂材料， 水凝胶如此形成为离散的结晶区，并且其中使这种水凝胶与结晶效应量的第二铝酸钠水溶液接触以将其转化为结晶4A沸石，并且有利地过滤，洗涤和任选地干燥此类结晶4A沸石。
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